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Theia: an advanced optical neutrino detector
Askins, M Bagdasarian, Z Barros, N Beier, EW Blucher, E Bonventre, R Bourret, E Callaghan, EJ Caravaca, J Diwan, M
Askins, M
Bagdasarian, Z
Barros, N
Beier, EW
Blucher, E
Bonventre, R
Bourret, E
Callaghan, EJ
Caravaca, J
Diwan, M
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2020-05-01
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10.1140/epjc/s10052-020-7977-8
Abstract
© 2020, The Author(s). New developments in liquid scintillators, high-efficiency, fast photon detectors, and chromatic photon sorting have opened up the possibility for building a large-scale detector that can discriminate between Cherenkov and scintillation signals. Such a detector could reconstruct particle direction and species using Cherenkov light while also having the excellent energy resolution and low threshold of a scintillator detector. Situated deep underground, and utilizing new techniques in computing and reconstruction, this detector could achieve unprecedented levels of background rejection, enabling a rich physics program spanning topics in nuclear, high-energy, and astrophysics, and across a dynamic range from hundreds of keV to many GeV. The scientific program would include observations of low- and high-energy solar neutrinos, determination of neutrino mass ordering and measurement of the neutrino CP-violating phase δ, observations of diffuse supernova neutrinos and neutrinos from a supernova burst, sensitive searches for nucleon decay and, ultimately, a search for neutrinoless double beta decay, with sensitivity reaching the normal ordering regime of neutrino mass phase space. This paper describes Theia, a detector design that incorporates these new technologies in a practical and affordable way to accomplish the science goals described above.
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Springer Science and Business Media LLC
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European Physical Journal C
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